Sipwise C5 mr4.5.13 Released (the last build of mr4.5)

We are excited to announce the general availability of the Sipwise C5^CE and C5^PRO mr4.5.13.

What is the Sipwise C5 platform?

The Sipwise C5 platform is a highly versatile open source based VoIP soft-switch for ISPs and ITSPs to serve large numbers of SIP subscribers. It leverages existing building blocks like Kamailio, Sems and Asterisk to create a feature-rich and high-performance system by gluing them together in a best-practice approach and implementing missing pieces on top of it.

Sipwise engineers have been working with Asterisk and Kamailio (and its predecessors SER and OpenSER) since 2004, and have roles on the management board of Kamailio and are contributing to these projects both in terms of patches and also financially by sponsoring development tasks. The Sipwise C5 platform is available as a Community Edition (CE), which is fully free and open-source, and as a commercial PRO appliance shipped turn-key in a high availability setup.

The Sipwise C5 provides secure and feature-rich voice and video communication to end customers (voice, video, instant messaging, presence, buddy lists, file transfer, screen sharing, remote desktop control) and connect them to other SIP-, Mobile- or traditional PSTN-networks. It can, therefore, act as an open Skype replacement system, traditional PSTN replacement, Over-The-Top (OTT) platform and also as a Session Border Controller in front of existing VoIP services in order to enable signaling encryption, IPv6 support, fraud- and Denial-of-Service prevention. Another use-case is to act as a Class4 SIP concentrator to bundle multiple SIP peerings for other VoIP services.

What’s new in mr4.5?

The most important changes for mr4.5.13 compared to mr4.4.x are:

• mr4.5 LTS release stabilization
• kamailio: upgrade to latest stable 4.4.5
• ngcp-panel: Since mr4.5.1 it’s only possible to create subscribers from within the Customer view. The global page Settings > Subscribers can be used for searching and viewing the subscribers and their preferences.
• Stale nonce workaround for asterisk (see this mailing list thread).
• Check for CLIR vertical service code (*31*) before applying callee-in rewrite rules. The code is stripped before rewriting callee in order to rewrite national number format to E.164 correctly, but as a consequence, it’s not possible to re-map the *31* code via rewrite rule anymore.
• faxserver – full carrier support and remote faxes queuing, faxes retain and retrieval support, various fixes, and improvements.
• ngcp-sync-grants – internal ngcp component for mysql credentials and mysql grants synchronization rework.
• emergency mapping to extend the emergency_prefix handling
• configuration option for Admin Web-UI to add links to “Documentation” panel
• [PRO/Carrier] RTCEngine has been migrated from mongodb to mysql
• CDR cleanup mechanism is improved to prevent filling up the cdrexport file system
• new lawful intercept mode via a loop over a peering server
• [CE] mysql now listens on the loopback interface by default (it was a socket)
• ngcp-panel: password in logs are now masked by default
• collectd: upgrade to 5.5.1-3~bpo8+1
• sems: prevent crashes on shutdown
• [Carrier] optional mysql-cluster support (ndb) for scaling registrations